Am I using the right web builder???

I am starting to build an on-line shop in Blue Voda and have a funny feeling that it might be better to use the Soholaunch site builder instead... If I change the Bluevoda one, what will I need to do to swap over to Soholaunch as I have alredy published a few pages www.friskidog.com on the web? Do I have to inform Vodahost of the swap over???
Many thanks Gary